First contact with JSrequire. js modular Tool

First contact with JSrequire. this article introduces the js modular tool require. in the first lesson of the js tutorial, I learned about require. js, write require. js, interested friends can refer to as the Website Functions gradually become more and more complex and bloated js in the web page, the original use of script tags to import js files is no longer able to meet the current Internet development model, we need team collaboration, module reuse, unit testing and a series of complex requirements.

Index.html: